GS: The pitcher's projected "Game Score," from Bill James' original formula, which accounts for past history (three years' worth as well as past 21 days), opponent and ballpark. A Game Score of 50 typically is typically regarded a quality start; anything over 70 is exceptional, anything under 30 poor. An asterisk notes that the game score has been adjusted by the analyst. Opp: The pitcher's opponent for the day. ERA: Pitcher's earned run average. WHIP: Pitcher's average number of walks plus hits surrendered per inning.